Home / 137,665,455.04-206,503,881.37-40,621,160.78

Finding the Fourth Proportional to 137,665,455.04, 206,503,881.37 and 40,621,160.78

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Solution

The fourth proportional to 137,665,455.04, 206,503,881.37 and 40,621,160.78 is: 60,933,422.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,665,455.04 : 206,503,881.37 = 40,621,160.78 : x
  2. Step 2: Convert to fraction form
    137,665,455.04/206,503,881.37 = 40,621,160.78/x
  3. Step 3: Cross multiply
    137,665,455.04x = 206,503,881.37 × 40,621,160.78
  4. Step 4: Simplify right side
    137,665,455.04x = 8,388,427,367,239,524
  5. Step 5: Solve for x
    x = 8,388,427,367,239,524/137,665,455.04
  6. Step 6: Final answer
    x = 60,933,422.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.